William h



(No Model.)

W. H. CRAIG. LOOM SHUTTLE.

No. 545,196. Patented Ang. 27, 1895.

Merzig?.

UNITED STATES PATENT Clarion.

WILLIAM n. entire, or sYRAoUsn, New YORK, AssieNoR To E. o. sTEARNs .e

oo., or SAME PLACE.

LOOM-SHUTTLE.

SPECIFCTION forming part of Letters Patent No. 545,196, dated August 27, 1895.

Application filed August 5, 1890. Serial No.36ljl18. (No model) To Cif/ZZ whom, may concern: made coneshaped, as vshown at g, to receive 5o Be it known that LVI'LLIAM H. CRAIG, a the conical end of the wire-cop. citizen of the United States, residing at Syra- H represents an oblique opening or passage euse, in the county of Onondaga and State of extending from the conical seat through the 5 New York, have invented a new and useful Shuttle-body for the purpose ot affording aclinprovement in Loom-Shuttles, ot' which the cess to the shuttle-thread. The conical seat 55 following is a specitication. and a portion of the passage H are preferably This invention relates to that class of shutlined with metal, as shown, to reduce the wear iles which are used in looms for weaving on these parts. 1o heavy fabrics-for instance, wire-cloth. J represents an antitrictiou orguide roller The object of this invention is to improve pivoted vertically in the passage in rear ot 6o the means whereby the cop or bobbin is held thecopseat. This roller is preferably pivoted against longitudinal movement in the shuttle, by means of a boltj and nutj, as shown in and whereby the tension ofthe shuttle-thread Fig. 4. 15 is regulated. K represents the eye of the shuttle, and L a In the accompanying drawings, Figure l is longitudinal passage formed in the inner side 65 a longitudinal sectional elevation of a shuttle of one ot' the vertical Walls ot the shuttle, provided with my improvements. Fig. 2 is a whereby the eye is placed in communication top plan view thereof. Fig. 3 is a horizontal with the oblique passage H. The wire in unzo longitudinal section of the shuttle. Figs. 4 Winding from the cop or bobbin passes outand 5 are vertical sections in linesar and y y, wardly through the hollow center ot the same 7c Fig. 3. Fig. G is a vertical crosssection in and into the passage Hin rear of the cop-seat,

line .e e', Fig. 1. thence around the antifriction-roller .l and in- Like letters of reference refer to like parts wardly through the passage L, and thence out z5 in the several figures. through the eye K.

A represents the body of the shuttle, which The eye K is provided with two tension- 75' is provided at its ends with the usual metallic rollers M N, whereby the tension on the shutheads da and with a longitudinal cavity B tlc-thread is regulated. These rollers are arfor the reception ot' the wire cop or bobbin C. ranged vertically, and one ot them is jour- 30 The bed is provided in its bottom with two naled in fixed bearings m, while the other is rows of upwardly-projecting teats or pins e, adjustable toward and from the fixed roller. Eo which embed themselves in the lower sido of n represents au adjustable plate arranged the wire-cop 4when the latter is placed in the on the upper side of the shuttle and secured bed of the shuttle. The top of the bed B is thereto by a screw o, passing through a slot p 35 closed byaspring-plate D, which is secured toformed in the plate. The latter is provided the shuttle-body by transverse straps d, se with a depending arbor q, which supports the S5 cured to the upper face of the shuttle, or by movable roller. Upon unscrewing and reother suitable means. The spring-plate is moving the adjustable plate carrying the deprovided with a longitudinal slot E, which is pending arbor, the roller can be removed from 4o bordered by two rows of teeth or serrations e, said arbor and another roller ot greater or which are preferably formed integral with less diameter cau be put in its place. When 9o the spring-plate by stamping them out of the the shuttle is traveling toward the right in body of the spring-plate and bending them the direction indicated by the arrow in Fig. downward. These teeth become embedded 3, the shuttle-thread bears against the inner .t5 in the upper side of the wire-cop and hold the side of the adjustable tension-roller N and the latter down upon the teats in the bottom of outer side of the fixed tension-roller M, and g5 the bed, whereby the wire-cop is securely held the tension is controlled by the bend which against longitudinal movement in the shuttlethe thread receives in passing around these bed. One end ot the bed B is preferably rollers and from one roller to the other. In

order to increase the tension on the wire when the shuttle is moving in this directiomthe adjustable tensionroller is moved toward the fixed roller, which causes a sharper turn in the wire. When the shuttle movesin the opposite direction, the shuttle-thread in leaving the shuttle-eye passes only around the adjustable roller N, as indicated by the dotted lines R in Fig. 3, and the tension is regulated by the diameter of the adjustable roller. A large adjustable roller creates a comparatively large bight in the wire, which produces a moderate tension on the thread,whereasa smaller roller forms a more abrupt bend in the Wire and creates a correspondinglygreater tension. In order to increase the tension onlthe wire in both directions, it is therefore necessary to provide rollers of various diameters, either of which can be placed upon the removable arbor, as may be necessary to produce the desired tension. When the cop or bobbin .is placed in the bed of the shuttle, the teats on the bottom will engage between the strands of wire. The covering-plate D is introduced under the fastening-straps d by springing it upwardly at the center, so that the ends of the plate will be drawn together and permitted to enter under these straps. The spring-plate is continually in a strained condition, so that its prongs will bear constantly on the top of the cop. By holding the cop against longitudinal movement in the shuttle thedanger of tangling or breaking the Wire is avoided. It also permits a cop of much larger capacity or weight to be employed, because there is no danger of the wire being broken by the loose portion of a heavy cop moving back and forth in the shuttle-bed. This effects a great saving in time, because less stoppages of the loom' are required for renewing the cop in the shuttle.

I claim as my invention- 1. The combination with the shuttle body having an eye through which the shuttle thread passes, of two tension rollers arranged in said eye, a support on which one of said rollers is mounted capable of movement on the shuttle body toward and from the other roller, and means whereby said support is secured in its adjusted position, substantially as set forth.

2. The combination with' the shuttle body having an eye through which the shuttle thread passes, of a tension roller mounted on a stationary bearing in said eye, a roller support capable of movement on the shuttle body toward and from the stationary roller, a tension roller removably mounted on said support, and means whereby said support is secured in its adjusted position, substantially as set forth.

3. The combination with the shuttle body havingl an eye through which the shuttle thread passes, and a tension roller arranged in said eye, of a plate provided with an arbor projecting into said eye and capable of movement toward and from said roller,a removable tension roller mounted on said arbor, and means whereby said plate is secured in its adjusted position, substantially as set forth.

lVitness my hand this lst day of July, 1890.

WILLIAM 1I. CRAIG. Witnesses:

CHESTER D. HoWE, JOHN N. ARDNER. 

